Skip to contents

GRS measure

Source: R/grs.R
concstats_grs.Rd

GRS measure

Usage

concstats_grs(x, na.rm = TRUE, digits = NULL)

Arguments

x

A non-negative numeric vector.

na.rm

A logical vector that indicates whether NA values should be excluded or not. Must be either TRUE or FALSE. The default is TRUE. If set to FALSE the computation yields a message if the vector contains NA values. NAs will be removed for further computations.

digits

An optional value for digits. Specifies the minimum number of significant digits to be printed in values. The default is NULL and will use base R print option.

Value

A single numeric value.

References

Ginevicius, R. and S. Cirba (2009). "Additive measurement of market concentration", Journal of Business Economics and Management, 10(3), 191-198.

See also

Other Concentration and inequality measures: concstats_all_inequ(), concstats_entropy(), concstats_gini(), concstats_inequ(), concstats_palma(), concstats_simpson()

Examples


# a vector of market shares
x <- c(0.4, 0.3, 0.2, 0.1)
concstats_grs(x, digits = 3)
#> [1] 0.398
#[1] 0.398

# a vector with NA values
x <- c(0.4, 0.2, 0.25, 0.1, 0.05, NA)
concstats_grs(x, na.rm = FALSE)
#> [1] NA